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262results about "Liquid-gas reaction as foam/aerosol/bubbles" patented technology
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Processes and apparatus for continuous solution polymerization
InactiveUS6881800B2Process control/regulationLiquid-gas reaction as foam/aerosol/bubblesSolution polymerizationProcess plant
The invention relates to processes and plants for continuous solution polymerization. Such plant and processes include a pressure source, a polymerization reactor, downstream of said pressure source, pressure let-down device, downstream of said polymerization reactor, and a separator, downstream of said pressure let-down device, wherein said pressure source is sufficient to provide pressure to said reaction mixture during operation of said process plant to produce a single-phase liquid reaction mixture in said reactor and a two-phase liquid-liquid reaction mixture in said separator in the absence of an additional pressure source between said reactor and said separator.
Owner:EXXONMOBIL CHEM PAT INC
Continuous process for the preparation of polytrimethylene ether glycol
InactiveUS6720459B2Liquid-gas reaction as foam/aerosol/bubblesOrganic compound preparationGas phaseEther
The invention is a continuous process for the preparation of polytrimethylene ether glycol from 1,3-propanediol reactant. In addition, the invention is directed to a continuous multi-stage process comprising reacting at least one reactant in a liquid phase in an up-flow column reactor, and forming a gas or vapor phase by-product wherein the gas or vapor phase by-product is continuously removed at the top and at least one intermediate stage.
Owner:DUPONT CA +1
Continuous process for the preparation of polytrimethylene ether glycol
The invention is a continuous process for the preparation of polytrimethylene ether glycol from 1,3-propanediol reactant. In addition, the invention is directed to a continuous multi-stage process comprising reacting at least one reactant in a liquid phase in an up-flow column reactor, and forming a gas or vapor phase by-product wherein the gas or vapor phase by-product is continuously removed at the top and at least one intermediate stage.
Owner:DUPONT CA +1
Processes and apparatus for continuous solution polymerization
InactiveUS20040024146A1Suppress further polymerizationProcess control/regulationLiquid-gas reaction as foam/aerosol/bubblesSolution polymerizationProcess plant
The invention relates to processes and plants for continuous solution polymerization. Such plant and processes include a pressure source, a polymerization reactor, downstream of said pressure source, pressure let-down device, downstream of said polymerization reactor, and a separator, downstream of said pressure let-down device, wherein said pressure source is sufficient to provide pressure to said reaction mixture during operation of said process plant to produce a single-phase liquid reaction mixture in said reactor and a two-phase liquid-liquid reaction mixture in said separator in the absence of an additional pressure source between said reactor and said separator.
Owner:EXXONMOBIL CHEM PAT INC
Solar-thermal fluid-wall reaction processing
InactiveUS7033570B2Reduce and preventShort stayThermal non-catalytic crackingSolar heating energyHydrogenReactor system
The present invention provides a method for carrying out high temperature thermal dissociation reactions requiring rapid-heating and short residence times using solar energy. In particular, the present invention provides a method for carrying out high temperature thermal reactions such as dissociation of hydrocarbon containing gases and hydrogen sulfide to produce hydrogen and dry reforming of hydrocarbon containing gases with carbon dioxide. In the methods of the invention where hydrocarbon containing gases are dissociated, fine carbon black particles are also produced. The present invention also provides solar-thermal reactors and solar-thermal reactor systems.
Owner:ALLIANCE FOR SUSTAINABLE ENERGY +1
Oxidation system with internal secondary reactor
ActiveUS20070155985A1Effective and economicalReduce formationLiquid-gas reaction as foam/aerosol/bubblesOrganic compound preparationOrganic chemistryTerephthalic acid
Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
Owner:ALPEK POLYESTER SA DE CV
Solar thermal aerosol flow reaction process
InactiveUS6872378B2Short stayCost-effectiveSolar heating energyHydrocarbon from carbon oxidesForming gasChemical reaction
Owner:UNIV OF COLORADO THE REGENTS OF +1
Process to remove impurities from triacylglycerol oil
ActiveUS20110003370A1Large water/oil interfaceImprove scalabilityFatty oils/acids recovery from wasteFatty acid esterificationCavitationPhospholipase
The present invention is directed to a process to remove impurities from triacylglycerol oil including mixing the oil and a fluidic agent, pumping the mixture through a flow-through hydrodynamic cavitation apparatus at a pre-determined inlet pump pressure, creating hydrodynamic cavitation in the mixture, maintaining the hydrodynamic cavitation for a pre-determined period of time, moving the impurities from the oil to the fluidic agent, and then separating the fluidic agent from the oil. The impurities can include phytosterols, sterol glucosides, acylated sterol glucosides, in which case the fluidic agent is water, an alkali hydroxide, an inorganic base, an organic base, phosphoric acid, citric acid, acetic acid or a mixture thereof. The impurities may also include phosphatides, in which case and the fluidic agent comprises water and an enzyme such as phospholipase, a lipid acyltransferase or a mixture thereof.
Owner:CAVITATION TECH
Oxidation system employing internal structure for enhanced hydrodynamics
ActiveUS20070155986A1Effective and economicalReduce formationLiquid-gas reaction as foam/aerosol/bubblesOrganic compound preparationOrganic chemistryTerephthalic acid
Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
Owner:ALPEK POLYESTER SA DE CV
Method for cavitation-assisted refining, degumming and dewaxing of oil and fat
ActiveUS20090314688A1Improve throughputPrevent oxidationLiquid-gas reaction as foam/aerosol/bubblesFatty acid esterificationCavitationOil phase
A method for degumming and / or refining crude oil containing impurities involving mixing the crude oil with degumming agents, i.e., water or acid, and subjecting the mixture to flow-through, hydrodynamic cavitation processing. The cavitational processing transfers impurities in the crude oil to a water phase for easier separation. The water phase may be separated from the oil phase by commonly available separation methods.
Owner:CAVITATION TECH
Method and apparatus for controlling feed of gaseous reaction component
A method comprises continuously supplying an alcohol to a pressurized reaction system, pressurizing carbon monoxide with a compressor 8 attached to a first feed line 22, for continuously supplying carbon monoxide to the reaction system via a second feed line 23 with a reference flow rate F, and converging excess carbon monoxide in the reaction system in the first feed line via a branched circulation line 24 for allowing to react alcohol with carbon monoxide. The reference flow rate F in the second feed line 23 is a total rate of a reference consumption flow rate Fcs in the reaction and a flow rate F1 in excess rate over a fluctuation consumption flow rate ΔFcv in the reaction system (F=Fcs+F1, F1>ΔFcv). According to the pressure fluctuation of the gaseous phase in the reaction system, the flow rate in the circulation line 24 is controlled to a flow rate Fr=F1−ΔFcv and the feed flow rate in the first feed line 22 is controlled to a flow rate Fsu=Fcs+ΔFcv, for compensating a consumption rate variation in the reaction system with the feed flow rate of carbon monoxide. This ensures discharge inhibition of the gaseous reactant in a liquid phase pressurized reaction system (such as carbonylation reaction system) and effective utilization of the reactant for the reaction.
Owner:DAICEL CHEM IND LTD
Continuous process for the preparation of polytrimethylene ether glycol
InactiveUS20040152925A1Liquid-gas reaction as foam/aerosol/bubblesOrganic compound preparationGas phaseEther
The invention is a continuous process for the preparation of polytrimethylene ether glycol from 1,3-propanediol reactant. In addition, the invention is directed to a continuous multi-stage process comprising reacting at least one reactant in a liquid phase in an upflow column reactor, and forming a gas or vapor phase by-product wherein the gas or vapor phase by-product is continuously removed at the top and at least one intermediate stage.
Owner:DUPONT IND BIOSCIENCES USA LLC
Method and device for producing cyclopropenyl compound
A device and method for generating cyclopropene gas comprising bubbling a gas through a vessel that contains water. A cyclopropene / cyclodextrin complex is added to the water to form an aqueous suspension. Cyclopropenes are used to inhibit the ethylene response in plants and plant products, such as fruits a nd vegetables. The device of the invention may treat small volume facilities as well as very large volume storage facilities, such as warehouses and the like. The bubbled gas rapidly and completely liberates the cyclopropene gas from its cyclodextrin carrier to provide a cost effective and efficient treatment against the ethylene response in plants.
Owner:ROHM & HAAS CO
Processes for increasing bioalcohol yield from biomass
ActiveUS20140363855A1Great tasteReduce the smellLiquid-gas reaction as foam/aerosol/bubblesFatty acid esterificationCavitationAlcohol
A process for increasing alcohol yield from biomass (the form or agro- or forest residue, grains, hops, etc.), involving multiple hydrodynamic cavitation treatments of biomass filtrate—both before and after fermentation. Carbohydrates extracted from biomass are subjected to a first cavitation treatment to promote additional conversion into carbohydrates. The carbohydrates are then combined with bacterial species and nutrients, and allowed to ferment. The fermentation product is subjected to a second hydrodynamic cavitation treatment to promote further conversion of carbohydrates into bioalcohol. After distillation, the bioalcohol is subjected to a second hydrodynamic cavitation treatment to increase its purity.
Owner:CAVITATION TECH
Modelling method for phase contact area structure-activity adjusting and controlling model for micro-interface enhanced reactor
ActiveCN107335390AEffective structureReduce mistakesLiquid-gas reaction as foam/aerosol/bubblesDesign optimisation/simulationModel methodReaction system
The invention relates to a modelling method for a phase contact area structure-activity adjusting and controlling model for a micro-interface enhanced reactor. A general expression of a gas-liquid interface area of a micro-interface enhanced reactor, a general expression of the gas content of the micro-interface enhanced reactor and an expression of the rising speed of air bubbles in a gas-liquid system of the micro-interface enhanced reactor are established in sequence; a structure-activity adjusting and controlling model of the phase contact area of the micro-interface enhanced reactor is acquired; the blank of prior art is filled up. According to the method provided by the invention, the reaction efficiency (energy efficiency and physical efficiency) of an ultrafine gas-liquid particle reaction system, physical and chemical characteristics of the system, micro-interface characteristics, mass transfer characteristics and a reactor structure are associated according to a mathematical method, so that the maximization target of the energy efficiency and the physical efficiency in a reacting process can be achieved by adjusting structural parameters and operation parameters; or under a specified reaction target (task) and energy consumption and physical consumption, a high-efficiency reactor structure is designed.
Owner:NANJING UNIV
Process of forming an oxidizing agent in liquid by use of ringing magnetic flux
InactiveUS6641739B2Avoid depositionReduce the populationLiquid separation auxillary apparatusLiquid separation by electricityMagnetic fluxOxidizing agent
A method of making an oxygen-rich and stabilized oxidizing agent in a liquid, preferably water, involves exposure of aerated liquid to repeated bursts of ringing magnetic flux having a primary frequency of 10 kHz to 80 kHz, with the bursts repeated at a frequency of 1 Hz to 100 Hz, and with the water being kept basic at a pH level between pH 7 to pH 10. The oxidizing agent is believed to be a relatively stable complex of hydrogen peroxide, and has a significant anti-microbial effect on microorganisms, including biofilms, in the water achieved by oxidation of the oxidizing agent with chemical components of the microorganisms.
Owner:EVAPCO PROD INC
High Shear Production of Value-Added Product From Refinery-Related Gas
A method of producing value-added product from refinery-related gas, the method comprising: providing a refinery-related gas comprising at least one selected from C1-C8 compounds; intimately mixing the refinery-related gas with a liquid carrier in a high shear device to form a dispersion of gas in the liquid carrier, wherein the gas bubbles in the dispersion have a mean diameter of less than or equal to about 5 μm; and extracting value-added product comprising at least one component selected from higher hydrocarbons, olefins and alcohols. A system for producing value-added product from refinery-related gas comprising: at least one high shear device comprising at least one rotor and at least one complementarily-shaped stator; apparatus for the production of a refinery-related gas comprising one or more of C1-C8 compounds; and a pump configured for delivering a liquid stream comprising the liquid carrier to the high shear device.
Owner:HRD CORP
Methods and Apparatus for Enhanced Gas Distribution
ActiveUS20120068111A1Low costLiquid degasificationTransportation and packagingDistribution methodReaction zone
Methods and apparatus for introducing a gas into the reaction zone of a reactor. Such methods and apparatus can more evenly distribute the gas throughout the reaction zone. Spargers for introducing a gas into the reaction zone of a reactor can be employed in systems and methods for carrying out the liquid-phase oxidation of an oxidizable compound, such as para-xylene.
Owner:ALPEK POLYESTER SA DE CV
Solar-thermal fluid-wall reaction processing
InactiveUS20060140848A1Reduce and preventShort staySolar heating energyPigmenting treatmentHydrogenReactor system
The present invention provides a method for carrying out high temperature thermal dissociation reactions requiring rapid-heating and short residence times using solar energy. In particular, the present invention provides a method for carrying out high temperature thermal reactions such as dissociation of hydrocarbon containing gases and hydrogen sulfide to produce hydrogen and dry reforming of hydrocarbon containing gases with carbon dioxide. In the methods of the invention where hydrocarbon containing gases are dissociated, fine carbon black particles are also produced. The present invention also provides solar-thermal reactors and solar-thermal reactor systems.
Owner:UNIV OF COLORADO THE REGENTS OF +1
Method and device for the metered addition of fluids into reaction vessels
InactiveUS20130064738A1High viscosityIncrease speedLiquid-gas reaction as foam/aerosol/bubblesWithdrawing sample devicesBioreactorBiomedical engineering
Proposed is a metering device (87, 54) for introducing a fluid (31) into a reaction vessel such as, for example, a bioreactor (2). The metering device according to the disclosure comprises a closure element (89) for closing the reaction vessel, at least one drop generator (33) arranged in the closure element, and a feed line (91) serving for feeding the fluid to the at least one drop generator. The drop generator comprises a nozzle (36) for dispensing the fluid into the reaction vessel, and a valve (35). In the closed state, the valve disconnects the nozzle from the feed line. The drop generator is suitable for generating individual drops of the fluid.
Owner:RESEACHEM
Apparatus for dissolving gas into liquid
ActiveUS6955341B2Increase chanceReduce the temperatureFlow mixersLighting and heating apparatusHigh concentrationLiquid medium
An apparatus for effectively dissolving gas into liquid medium to obtain high concentration of gas solution includes a mixer and a tank enclosure, wherein the mixer primarily includes a quasi-Venturi tube and an expansion chamber. During operation, gas is introduced into the liquid in the quasi-Venturi-typed mixer. A valve mounted at the inlet of the mixer is used to regulate the gas flow so that the flow rate of the gas entering the mixer is lower than the rate of the gas drawn into the quasi-Venturi tube. With the gas drawn-in capability of the quasi-Venturi tube, gas can be mixed with the liquid flow through the quasi-Venturi tube under negative pressure and forms small gas bubbles in the liquid. The liquid carrying small gas bubbles flows out of the mixer, and subsequently flows into the tank enclosure and forms a whirlpool therein. As such, the gas bubbles can remain in the liquid for a prolonged time, which helps the gas dissolve in the liquid. The mixing apparatus is applicable for producing high gas concentration of water.
Owner:LIOU
Liquid-gas phase reactor system
InactiveUS20110144384A1Effective distributionBroad utilityLiquid-gas reaction as foam/aerosol/bubblesOrganic compound preparationReactor systemProcess engineering
A liquid-gas phase reactor system including a slinger located in an upper section (headspace region) of a reaction vessel. The slinger comprises an upper horizontal surface including a plurality of vertically raised vanes extending radially outward along a curved path which effectively distribute liquid about the reactor vessel. A method for conducting an oxidation reaction using a liquid-gas phase reactor system is also disclosed. The disclosed reactor system and method have a broad range of applications but are particularly suited for the production of terephthalic acid.
Owner:PIRAS LUCIANO +3
Method for cavitation-assisted refining, degumming and dewaxing of oil and fat
ActiveUS8911808B2Improve throughputPrevent oxidationDough treatmentMilk preservationCavitationImpurity
A method for degumming and / or refining crude oil containing impurities involving mixing the crude oil with degumming agents, i.e., water or acid, and subjecting the mixture to flow-through, hydrodynamic cavitation processing. The cavitational processing transfers impurities in the crude oil to a water phase for easier separation. The water phase may be separated from the oil phase by commonly available separation methods.
Owner:CAVITATION TECH
Process for producing biodiesel through lower molecular weight alcohol-targeted cavitation
ActiveUS20110151524A1Reduce fluid pressureExcess cavitationFatty oils/acids recovery from wasteFatty acid esterificationAlcoholTransesterification
A method for producing fatty acid alkyl esters from biolipids through transesterification and / or esterification reactions uses a flow-through cavitation device for generating cavitation bubbles in a fluidic reaction medium. The fluidic medium is passed through sequential compartments in the cavitation device having varying diameters and inner surface features to create localized reductions in fluid pressure thus vaporizing volatile alcohols and creating an increased surface area and optimized conditions for the reaction to occur at the gas-liquid interface around the bubbles.
Owner:CAVITATION TECH
Gas liquid reaction kettle adopting spherical crown-shaped micropore corundum gas supply apparatus
PendingCN110404485ALarge air supplyStrong agitationLiquid-gas reaction as foam/aerosol/bubblesChemical/physical/physico-chemical stationary reactorsGas liquid reactionAging resistance
The invention relates to a gas liquid reaction kettle adopting a spherical crown-shaped micropore corundum gas supply apparatus. The gas liquid reaction kettle comprises a reaction kettle body and a gas supply device, the reaction kettle body comprises a main kettle body, the gas supply device comprises the gas supply apparatus, the gas supply apparatus is arranged in the main kettle body, and thetop surface of the gas supply apparatus is a spherical surface; the gas supply apparatus is in a spherical crown shape and is of an integrated structure, and upper and lower surfaces of the gas supply apparatus release gas simultaneously; the gas liquid reaction kettle has the advantages of a large gas supply amount, high stirring intensity, low resistance, high efficiency, low consumption, reliable operation, no blockage, ageing resistance, corrosion resistance, long service life and the like; in addition, the superficial area of contact between gas and liquid is greatly increased through alarge number of fine bubbles, the reaction speed is increased, and the reaction efficiency is improved; in addition, during gas supply, a high self-stirring effect of a large number of small bubbles is achieved, a stirring device of a conventional gas liquid reaction kettle does not need to be arranged, the structure can be simplified, the cost is reduced, and if the stirring device is arranged, the speed and efficiency of a gas liquid reaction can be further improved.
Owner:TONGLING UNIV
Processes for removing waxes and phospholipids from vegetable oils and increasing production of food grade lecithin therefrom
ActiveUS20140087042A1Improve the immunityLiquid-gas reaction as foam/aerosol/bubblesFatty acid esterificationWaxCavitation
A process for removing impurities from a crude vegetable oil. The process involves mixing the crude vegetable oil with removal reagents and pumping the mixture through a multi-stage, hydrodynamic cavitation device. The mixture is subjected to hydrodynamic cavitation processes, which result in the repeated generation and collapsing of vapor bubbles of volatile components in the process fluid, leading to the formation of an emulsion of vegetable oil and a water-phase from the process fluid into an emulsion. The water-phase contains the impurities. The vegetable oil and water-phase are then separated. Lecithin may be made from the phospholipids in the water-phase after appropriate drying processes.
Owner:CAVITATION TECH
Delivery system for liquid catalysts
A delivery system for generating a sparging gas containing catalyst particles and delivering them to a flame zone of a combustion reaction is disclosed. A catalyst mixture receptacle for the delivery system includes a floating ball check valve on an air inlet to an inlet tube of the receptacle which is spaced from a vertical wall of the receptacle. A secondary splash chamber having an opening smaller than the body of the chamber is also included between the main body of the receptacle and the sparging gas outlet for the receptacle to reduce the opportunity for catalyst mixture in liquid form to reach the sparging gas outlet. An enrichment circuit is disclosed including a controller, pump, and a one-way check valve for adding additional sparging gas to a flame zone of a combustion process in times of added load. The receptacle may be mounted with a vibrator, such as the pump, to increase the consistency of the bubbles in the sparging process. Alarms and indicators, including remote alarms and indicators, may also be included to relay pertinent information regarding the delivery system. The sparging gas may thereafter be pressurized and injected in particular applications.
Owner:EPS TECH +2
Supergravity nano-microbubble generating device and reaction system
ActiveCN109701457AIncrease gas holdupSmall particle sizeLiquid-gas reaction as foam/aerosol/bubblesFlow mixersMicrobubblesGas phase
Owner:BEIJING UNIV OF CHEM TECH
Preparation of (poly) isocyanic ester in gas phase
InactiveCN1530361AIsocyanic acid derivatives preparationLiquid-gas reaction as foam/aerosol/bubblesGas phaseSolvent
The present invention relates to a process for the manufacture of diisocyanates by phosgenation of the corresponding diamines in which the vaporous diamines, optionally rarefied with an inert gas or with the vapors of an inert solvent, and phosgene are heated separately to temperatures of about 200 DEG C. to about 600 DEG C. and mixed and reacted in a tube reactor characterized in that a number n>=2 of nozzles directed parallel to the axis of the tube reactor are arranged in the tube reactor, the diamine-containing stream being fed into the tube reactor through the n nozzles and the phosgene stream being fed into the tube reactor through the remaining free space.
Owner:COVESTRO DEUTSCHLAND AG
Production method of ultrafine gold particle-dissolved water and device therefor
InactiveUS6869626B1Improve physical conditionRecovery from fatigueFrom normal temperature solutionsLiquid separation by electricityCombustion chamberHydrogen
The present invention realized the production of a water product having excellent physiological activity such as health promoting activity and the utilization of the water, in which ultrafine gold particles having a diameter as small as 1-2 figures in micron order, much smaller than any ordinary fine gold particles, are dissolved.According to the present invention, an aqueous ultrafine gold particle solution is produced using an apparatus comprising a pressure-resistant vessel equipped with a high-pressure water tank, a jet nozzle, an ignition device, and a combustion chamber, in which a gas mixture comprising hydrogen and oxygen is combusted in highly pressurized water, in which gold leaf fragments are suspended, and then the gold leaf fragments are heated and melted by the resulting combustion gas.
Owner:PHITEN
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